SPD Pen - Spikes

thingiverse

This innovative prototype serves as a functional pen body tailored specifically for use with a standard Bic Stic pen cartridge. The distinctive, textured design on the pen's exterior is deliberately engineered to engage children suffering from Sensory Processing Disorder. As they write, the pyramidal protrusions or "spikes" are intended to provide a tactile experience that stimulates and enhances their sensory awareness.